λ=033°Ls,  ( ω=002°, 057°W,   φ=02°S ),   δ=10.3",   ι=32°

Instrument: 23cm Maksutov-Cassegrain
Magnification: 310×, 410×

Notes:
17:45 GMT ( ω=002°W) Seeing: Ant III
Baader Multi-band filter
  Observation commenced in deepening twilight. S Meridiani is the most prominent feature present. M Erythraeum and M Acidalium subdued. Npc conspicuous* and a brighter area on the south p limb could be Hellas?
*NPC was a dark melted band - Ephisisted by use of filters; best seen with Wr#21 orange. 410× possible with darker filter.

21:30 GMT ( ω=057°W) Seeing: Ant III-IV
Wr#23A filter
  Second drawing to show M Erythraeum complex now rotated on to the disk. Chryse and Xanthe quite bright.

Observer:   David GRAHAM ,   Catterick Village, nr Richmond, North Yorkshire, UK